Bookbinding



March 24, 1942. J. E. GRANT BOOKBINDING Filed March 14, 1941 n E ldoseph E. Grant. BY

Patented Mar. 24,1942

ESTATES TENT @FICE 2 Claims.

My invention relates to certain improvements in bindings for book leavesand has for its general object the provision of a simple andeconomically constructed durable binding.

A further object of my invention is to provide a novel binding whichprovides spaced leaves.

A further object of my invention is to provide a novel apparatus forbinding book leaves.

A more specific object of my invention is to provide a binding whereinthe leaves are provided at the bound edge with a reinforcement or spacerstrip, which is secured to the leaf by a flexible strip in such mannerthat the strip serves as a hinge connecting the two leaves, thuseliminating the necessity for sewing or kerfing the leaves.

Other objects and advantages of this invention will become apparent tothose skilled in the art by the following description, reference beinghad to the accompanying drawing in which like characters of referenceindicate corresponding parts in all the figures.

Fig. 1 is a fragmentary, perspective, view of an open book boundaccording to my invention.

Fig. 2 is a fragmentary, sectional, elevation of the book in a closedposition showing details of construction.

Fig. 3 is a fragmentary plan view of the binding apparatus and showingthe spacer-reinforcement strips, tape strips, and leaves.

Fig. 4 is a fragmentary section taken in line 44, Fig. 3, showing onestep in the method.

Fig. 5 is a view similar to Fig. 4 showing another step in the method,and

Fig. 6 is a fragmentary section showing a plurality of joined leaves.

Referring to the drawing by reference character I have shown myinvention as embodied in a book which is indicated generally at I0. Asshown the book includes a cover II having a cover-lining I2 and an outerbinding tape I3. The book also includes a plurality of pages I4 on whichspacer and reinforcing strips I5 are mounted. The assembly is securedtogether by tape strips I6.

The book is preferably assembled in an apparatus shown in Figs. 3 and 4,which includes a base I! having end flanges I8 thereon. The base alsohas side flanges I9 which extend a short distance along the sides.Intermediate the end flanges I8 I provide an inwardly directed spacingmember 29. The spacers are spaced apart a distance which corresponds tothe combined thickness of the leaf I4 and strip I5 so that when theparts are folded from the position shown in Fig. 4 to the finishedposition shown in Fig. 2 the width of the tape strips I6 will becorrect.

In constructing my book, for convenience in assembly the parts areassembled upside down with respect to the position shown in the finishedbook in Figs. 1 and 2. I first lay a strip of adhesive tape I6 on thebase I8 as shown in dotted lines in Fig. 3 and in solid lines in Fig. 4.The length L of this strip in Fig. 3 is such that it fits between thespacers 29. The strip I6 has an adhesive coating 2| on the upper surfacethereof as shown in Fig. 4. A page I4 is then inserted as shown in Fig.4 and moved down so that it engages the adhesive 2|.

The page I4 has a length L which corresponds to the distance between theflanges I8 and the page I4 has a width W corresponding to the distancebetween the spacer 29 and the flange I9. A reinforcing strip having alength L" corresponding to the distance between the flanges I8 and awidth W corresponding to the distance between the flange I9 and thespacer 20 as shown in position in Fig. 4 and is brought down onto theadhesive 2| and is secured.

The reinforcement I5 is then folded to the position shown in Fig. 5. Thespacers 26 are of such length as shown in Fig. 4 so that this foldingmay readily occur. The assembly including the page with itsreinforcement is then removed and placed on a support 22 as shown inFig. 6. The support 22 includes a side 23 and the assembly is movedagainst the side 23 which serves as a guide. A second page is then madein the same manner.

The upper surface 24 of the strip I6 and the upper surface 25 of thereinforcement I1 of the assembly on the support 22 are then moistenedwith glue and the next assembly is laid upon the first assembly so thatthe adhesive 24 surface engages the superimposed reinforcing strip I6and the adhesive 25 surface engages the superimposed page I I. Thisprocess of adding assemblies is combined until the desired number ofpages have been bound.

To complete the book, the lower cover lining I2 is secured in place onthe last page and the reinforcement on this page is omitted. The tape39, shown in Fig. 2, is secured to the cover I I and this cover issecured to the cover lining I2. The tape 39 is also secured to the outerbinding tape I3 as shown in Fig. 2. At the other side of the book thecover lining I2 is secured in place of the usual page I4 by means of thetape I6 and a tape 3| is applied as shown in Fig. 2. The cover H issecured to the tape 3| and to the adjacent cover lining l2, and the tape3| is then secured to the outer binding tape 13 which extends somedistance along the covers I l.

The reinforcement strips l5 provide a spacing means so that the pages I4are separated thus allowing relatively bulky members to be secured tothe pages [4 Without undue pressure against the adjacent page.

From the foregoing description it will be apparent that I have inventeda novel binding which can be economically manufactured and which ishighly efficient for its intended purpose.

Having thus described my invention, I claim:

1. In a book, a plurality of page assemblies, each page assemblycomprising a page, a reinforcement of less width than the page, and anadhesive strip of less length than the reinforcement and secured to oneface of the page and to the corresponding face of the reinforcement,each reinforcement being folded with its associated strip as a hinge tooverlap the adjacent page, said assemblies being arranged so that theadhesive strips have their surfaces in direct engagement, adhesive meansconnecting the engaged portions of the strips, said reinforcementsprojecting beyond the strips and engaging the succeeding page andadhesive means connecting the projecting portion of each reinforcementwith the succeeding page.

2. In a book, a plurality of page assemblies, each page assemblycomprising a page, a reinforcement of less width than the page, and anadhesive strip secured to the page and one face of the reinforcement,said reinforcement projecting beyond said adhesive strip and beingfolded with said adhesive strip as a hinge to overlap the adjacent page,said page assemblies being arranged with their adhesive strips in directengagement, adhesive means securing the projecting portions of eachreinforcement to the page of the succeeding page assembly.

JOSEPH E. GRANT.

